Aero Precision M4E1 Special Edition Thunder Ranch 16" 5.56 Mid-Length w/ 15" ATLAS R-ONE Complete Upper - Black

The Thunder Ranch product line is a joint venture between Aero Precision and Thunder Ranch. Aimed to achieve Clint Smith's ideal purpose built "Ultimate Carbine", these products include key features requested from Clint Smith himself but with an Aero Precision flare. Like everything surrounding the Thunder Ranch name, you get exactly what you need - nothing more and nothing less. This complete upper includes our popular ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Includes: M4E1 Threaded Assembled Upper Receiver, Special Edition: Thunder Ranch 15" ATLAS R-ONE Handguard of choice 16" 5.56 Mid-Length CMV Barrel Low Profile Gas Block and Mid Length Gas Tube VG6 Precision Delta 556 Magpul MBUS Front/Rear Flip-Up Sights - Black Product comes assembled This complete upper does not include BCG or Charging Handle. M4E1 Thunder Ranch Threaded Upper Receiver Features: Thunder Ranch Logo on tang No Forward Assist New enhanced forging that gives the upper receiver a "billet look" New picatinny profile that blends seamlessly with our Enhanced Series Handguards M4 Feedramps .250 takedown pin holes Laser engraved T-marks Includes port door installed ATLAS R-ONE Handguard Features: Full top picatinny rail for optional attachments Quick disconnect sling socket at the 3, 6 and 9 o'clock positions Compatible with low profile gas blocks 1.3" Inside diameter 1.5" Outside diameter Compatible with mil-spec AR15 upper receivers and barrels 16" 5.56 Mid-Length Barrel Features: 5.56 NATO 16" Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled .750 gas block journal Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested